peidmore



(No Model.)

H. E. PRI-DMORE.

WHEEL.

N0. 382,8Q9. Patented May 15, 188:8;

Il'wTThn STaThs nPaTnNT @Tricht HENRY E. PRIDMORE, OF CHICAGO, ILLINOIS,ASSIGNOR TO THE MCCOR- MICK HARVESTING MACHINE COMPANY, OF SAME PLACE. V

WHEEL.. i

, SPECIFICATION forming part of Letters Patent No. 382,899, `dated May15, 18818.

Application tiled September 1` 1887. Serial No. 248,506. (No model.)

To `oir/ZZ whom it may concern:

Be it known that I, HENRY E. PRIDMORE,

a citizen of the United States of America, residing at Chicago, in thecounty of Cook and State of Illinois, haveinvented certain new anduseful Improvements in Vheels, of which the following is aspecification.

My invention relates,primarily,to the grainwheels of harvesters, andwill be illustrated and explained in connection with sucha wheel, butis, however, capable of general applica` tion, and the special wheeldescribed may therefore be considered as the exponent of a more extendedtype.

Metal wheels have heretofore been constructed with spokes each adjacenttwo of which were formed of a single rod of metal bent at its center toembrace a lug or round upon the hub or upon a collar slipped over t-hehub-sleeve and radiating thence to the rixn. Such wheels, however, wereusually of such nature as to necessarily collapse whenever the hub wasremoved, or else the spokes were so connected to the collar that theymust be entirely disconnected from the rim and drawn endwise through the-collar in order to remove them therefrom.

In my present invention I propose to employ spokes of the just-mentionedform; but, instead of attaching them at the bend or apex directly to thehub by slipping them through holes in a collar, I cause them to catchover `suitably shaped and grooved lugs upon the -and giving permanentform to it before the hub is applied, and enabling such hub to beremoved without otherwise affecting the general structure of the wheelby disarranging the spokes or affecting their tension, or the disk to beremoved without disturbing the spokes, or any double spoke to beseparately and readily removed, so that should any injury be received byeither the hub, disk, or spokes, or should the hub become so worn as abearing as to be no longer serviceable, the defective part may bedetached and a new one applied without trouble.

In the drawings, Figure l is aside elevation of a wheel constructedaccording to my invention, the hub being removed to more clearly exposethe connection of the spokes to the central annulus or disk. Eig. 2 isa'vertical section through said wheel with the hub in position, taken onthe correspondingly-nurnbered line in the preceding figure. Fig. 3 is anedge elevation of the central binding-disk; Fig. 4, an end elevation ofthe hub,seen from the outer end; and Fig. 5, a side elevation thereof;Fig.'

and preferably grooved at such apex and along.

the two ilaring sides that extend therefrom to the periphery of thedisk. The spokes C are composed of metal rods which are bent at theircenters c to each take over one of the lugs on the disk and t into theedge grooves thereof, and thence radiate in two arms to the wheelrim,these arms at their ends being screwthreaded and passing through saidrim, out side of which they 'receive nuts c, whereby they are secured,each bent rod 'thus forming two spokes and the nuts at the exteriorserving to tighten these spokes and strain them against the resistanceof the central disk, which in the end binds the whole series of spokestogether and in their proper relation to the rim. These nuts` also serveas tread strips or projections to enable the wheel to take a iirm holdof the ground. Other nuts, c2, may be applied to the spokes inside ofthe rim to serve as jamnuts, and in case it should be thought advisableto omit the tread-nuts these j ani-nuts alone will suffice to hold thespokes when the hub is in position, as will immediately appear, thoughnot when it is removed.

The wheelhub D is formed with a central bearing, d, and peripheralflange D', provided with insetting lugs d', which take into the spacesbetween the lugs on the binding-disk roo and sit against the spokes heldthereby, but which may be omitted, if desired, leaving the ange a simplecollar with hat faces. The periphery of the hub where it passes throughthe central bore in the binding-disk is preferablyA slightly taperingthat it may Wedge into this bore and make a rm t, allowing, however, itsflange to come against the opposing face of the disk, when the two willbe secured together by bolts d, passing through said flange and throughlugs on the disk, thus completing the wheel. If thereafter, from anycause, it should become necessary to remove the hub, this will easily bedone by removing the bolts, when it can be detached from the disk,leaving the spokes, however, still held and strained in their properposition by said disk, and a new hub can then be fitted into positionwithout the attendant trouble of readjusting the spokes. A furtheradvantage of such construction is that it also permits the hub to bemade of different metal from the binding-disk-as, for instance,cast-steel.

Another advantage arising from the fact that the lugs on the face of thedisk or annulus are open-that is to say, are not guarded by a keeper onthe disk or by holes through a lateral flange adjacent to the periphery,as insome prior constructions-is that the disk itself may be removed byslightly loosening some of the spokes without detaching them and a newdisk put in its place,` or else a broken spoke removedvwithoutnecessitating its being drawn through before it is entirely detachedfrom the wheel and another spoke quickly and readily put in its place.

While I have described the spokes as passing through the wheel-rim andbeing strained by nuts applied externally to said rim it isA evidentthat their ends may abut against or sit in sockets on the inner face ofsaid rim, and that the central bore through the disk may be of such sizeand the tapering hub bear such relation thereto that When the hub isplaced in position it will come against the bends or apexes and force orwedge them out against the rim with a force determined by the boltswhich clamp the hub and the disk.

I claim- 1. The combination, substantially as hereinbefore set forth, ofthe metal wheel-rim, the

2. The combination, in a metal wheel, Vof a metal rim and a centralbinding-disk provided with lugs upon its face, spokes formed ofcentrally-bent rods which fit over said lugs at their apexes and extendthence to the rim, an independent hub having a bearing-sleeve passingthrough the center of the disk, and a flange which comes against theface of said disk and confines the spokes thereon, and bolts passingthrough said ange and disk.

3. The combination, substantially as hereinbefore set forth, with themetal wheel-rim, the central binding-disk and its iiaring lugs, and thecentrally-bent spokes, of the tapering hub, its annular flange, and thebolts uniting said iiange to the binding-disk.

4. The combination, substantially as hereinbefore set forth, of thewheel-rim, the central binding-disk having radially-flaringlugs, thecentrallybent spokes taking over said lugs and at their ends passingthrough'the rim, the nuts applied to the outer end of said spokesexteriorly to the rim, the hub and its annular flange, andthe boltsuniting said flange to the binding-disk.

5. The combination, substantially as hereinbefore set forth, of thewheel-rim, the central binding-disk having radially-iaringlugs, thecentrally-bent spokes taking over said lugs and at their ends passingthrough the rim, the nuts applied to the outer end of said spokesexteriorly to the rim, the jam-nuts applied to said spokes inside of thewheel-rim, the hub and its annular liange, and the bolts uniting saidflange to the binding-disk.

6. The combination, substantially as hereinbefore set forth, of thewheel-rim, the central binding-disk having Haring lugs, theoentrally-bent spokes taking over said lugs, the hub having an annularflange provided with teeth or projections entering into the spacesbetween said lugs, and the bolts uniting said flange to thebinding-disk. Y

HENRY E. PRIDMORE.

Witnesses:

ALICE S. WELLS, L. VAssALL.

